Overview
The GW5 series outdoor high voltage AC disconnector is an outdoor high voltage electrical equipment for AC 50Hz, with rated voltage levels of 40.5kV, 72.5kV, and 126kV. It is used for opening and closing high voltage lines under voltage but no load conditions, as well as for electrical isolation between high voltage buses, circuit breakers, and other electrical equipment under maintenance and live high voltage lines. It can also be used for opening and closing small capacitive or inductive currents.
This series of outdoor disconnectors complies with the relevant provisions of GB1985 "High-voltage AC disconnectors and earthing switches," IEC129 "AC disconnectors and earthing switches," and GB/T11022 "Common specifications for high-voltage switchgear and controlgear standards."
Main Technical Parameters
| Rated Voltage (kV) | Rated Current (A) | Dynamic Stable Current (kA) | Thermal Stable Current kA/S | Power Frequency Withstand Voltage kV/1min | Impulse Withstand Voltage kV | ||
| To Ground | Across Open Contacts | To Ground | Across Open Contacts | ||||
| 40.5 | 630 | 50/63 | 20/25/4 | 95 | 118 | 185 | 215 |
| 1250 | 63/80 | 25/31.5/4 | |||||
| 1600 | 80/100 | 31.5/40/4 | |||||
| 2000 | 80/100 | 31.5/40/4 | |||||
| 72.5 | 630 | 50/63 | 20/25/4 | 140 160 |
160 176 |
325 350 |
375 385 |
| 1250 | 63/80 | 25/31.5/4 | |||||
| 1600 | 80/100 | 31.5/40/2 | |||||
| 2000 | 80/100 | 31.5/40/2 | |||||
| 126 | 630 | 50/63 | 20/25/4 | 230 | 265 | 550 | 630 |
| 1250 | 63/80 | 25/31.5/4 | |||||
| 1600 | 80/100 | 31.5/40/2 | |||||
| 2000 | 80/100 | 31.5/40/2 | |||||
